Smiling, simple and "huggly" if that's a word So I guess pretty much all the "ingredients" kids can easily relate to. And the name sounds nice as well.
Sooo, in other words, I don't find anything wrong here. In my opinion you could certainly go with this. Great work!
Maybe, if I reeeeeally try to think of something to add or so, that could be more colors... i don't know... But I'm not sure whether that would really add any value... just that I guess kids like colors (?).
Aaa, this is quite an adorable mascot! xD Also, I like the spelling of its name. Intended mispellings can be so annoying (eg. quick - 'kwik' or 'quik', but I feel you pulled the name 'Klix' off pretty well. The concept and artwork are very nice. :3
(Lol, it reminds me of Mr. Pepper and Mrs. Salt...)